Improvement in churn-dashers



M. J. SMITH.

Churn Dasher.

Patented Nov. 7, 1865.

UNITED STATES PATENT OFFICE.

MILTON J. SMITH, OF DANSVILLE, NEW YORK.

IMPROVEMENT IN CHURN-DASH ERS.

`Specification forming part of Letters Patent No. 50,851, dated November 7, 1865.

To all whom it may concern:

Be it known that I, MILTON J. SMITH, of Dansville, Livingston county, State of New York, have invented a new and Improved Ghurn-Dasher; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this speciiica-tion, in which- Figure l is a top view of the dasher. Fig. 2 is a bottom view of the same. Fig. 3 is a vertical cross-section.

' Similar letters of reference indicate corresponding parts in the three lignres.

This invention consists in combining with an inverted-trough-shaped dasher a rectangu lar frame, which latter, together with the inverted trough, are perforated in such manner t-hat opposing currents of the milk or cream are brought violentlyin contact with each other, and athorough agitation and aeration of the milk in the churn is effected, as will be hereinafter described.

To enable others skilled in the art to understand my invention, I willdescribeirs construction and operation.

The body of the dasher consists of an inverted trough, A, having inclined conca-ve sides c a, terminating at their highest point in a ridge, b, which extends from end to end ofthe trough, as shown in Fig. l. On each side of the central channel, C, ot' the trough A the sides or wings a a, terminate in dat horizontal surfaces, e c, and through these portions vertical holes d d are made. Between the rows of vertical perforations d d and the ridge b are rows ot' inclined perforations c c, which are intended for directing the currents of milk or cream in the churn-box upward and outward, as indicated by the arrows in Fig. 3, when the dasher is forcibly depressed; and these currents meet others which ow through the vertical holes d d, at a point which is some distance above the surface of theI dasher A, and are thus broken. Vhen the dasher ascends the currents of milk are caused to tiow in reverse directions to those above mentioned.

B represents ahorizontal rectangular frame, which consists ot' four narrow bars, secured together at their ends and suitably perforated to admit ot the passage ot' the milk through them. This frame is secured to the ends of the body of the dasher in a. horizontal pla-ne with the ridge I), and it is intended to assist in breaking up the ascending currents which escape through the perforations d and e, and also to compel the milk to dowinward from the sides ot' the churn-box. The frame B is somewhat larger than the body ofthe dasher, and it works within a rectangular churn-box, so as to serve as a guide as well as a part of the dasher. For this reason the milk which cannotpass through the perlorations which are made through the bars ot' the frame B will be forced toward the center ot' the churn and be received upon the inclined surfaces act, which will cause the milk to flow outward again and direct it forcibly against the sides ofthe churn'.

When the dasher descends a large quantity of air will be collected in the channehU, which will be intimately mixed with the milk as itis forced out through the perforations d and e, and through the openings at the ends ot' the channel. By this means airis carried beneath the surface of the milk and mixed with it at every downward stroke of the dasher.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination of the perforated and inverted-trough-shaped portion A with the elevated frame B, constructed lo oper-rate substantially as described.

2. Theconstruetion of theportion A with concave sides a a, having perforations d and e through them, substantially as described.

MILTON J. SMITH.

In presence of- O. TEUsEY, M. S. DAvIs. 

